./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca10e259bac305ecd55fc4a34d201bc0894aa533 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:47:57,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:47:57,010 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:47:57,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:47:57,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:47:57,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:47:57,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:47:57,021 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:47:57,022 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:47:57,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:47:57,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:47:57,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:47:57,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:47:57,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:47:57,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:47:57,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:47:57,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:47:57,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:47:57,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:47:57,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:47:57,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:47:57,033 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:47:57,035 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:47:57,035 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:47:57,036 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:47:57,036 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:47:57,037 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:47:57,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:47:57,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:47:57,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:47:57,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:47:57,040 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:47:57,040 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:47:57,040 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:47:57,041 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:47:57,042 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:47:57,042 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 12:47:57,053 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:47:57,053 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:47:57,054 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:47:57,054 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:47:57,054 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:47:57,055 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 12:47:57,055 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 12:47:57,055 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 12:47:57,055 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 12:47:57,055 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 12:47:57,055 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 12:47:57,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 12:47:57,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 12:47:57,057 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:47:57,057 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:47:57,058 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 12:47:57,058 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:47:57,058 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:47:57,058 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 12:47:57,059 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 12:47:57,059 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca10e259bac305ecd55fc4a34d201bc0894aa533 [2018-11-23 12:47:57,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:47:57,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:47:57,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:47:57,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:47:57,094 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:47:57,094 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-23 12:47:57,134 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/data/ecc9bb119/8f247ad060be426f847ec353858ecc47/FLAG87851d025 [2018-11-23 12:47:57,460 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:47:57,461 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-23 12:47:57,465 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/data/ecc9bb119/8f247ad060be426f847ec353858ecc47/FLAG87851d025 [2018-11-23 12:47:57,896 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/data/ecc9bb119/8f247ad060be426f847ec353858ecc47 [2018-11-23 12:47:57,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:47:57,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:47:57,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:47:57,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:47:57,903 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:47:57,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:57" (1/1) ... [2018-11-23 12:47:57,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ca3199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:57, skipping insertion in model container [2018-11-23 12:47:57,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:57" (1/1) ... [2018-11-23 12:47:57,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:47:57,930 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:47:58,060 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:47:58,063 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:47:58,073 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:47:58,082 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:47:58,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58 WrapperNode [2018-11-23 12:47:58,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:47:58,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:47:58,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:47:58,083 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:47:58,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:47:58,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:47:58,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:47:58,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:47:58,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... [2018-11-23 12:47:58,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:47:58,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:47:58,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:47:58,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:47:58,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:47:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:47:58,283 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:47:58,284 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 12:47:58,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:58 BoogieIcfgContainer [2018-11-23 12:47:58,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:47:58,284 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 12:47:58,284 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 12:47:58,286 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 12:47:58,287 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:47:58,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:47:57" (1/3) ... [2018-11-23 12:47:58,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31a1904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:47:58, skipping insertion in model container [2018-11-23 12:47:58,288 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:47:58,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:58" (2/3) ... [2018-11-23 12:47:58,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31a1904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:47:58, skipping insertion in model container [2018-11-23 12:47:58,288 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:47:58,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:58" (3/3) ... [2018-11-23 12:47:58,289 INFO L375 chiAutomizerObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i [2018-11-23 12:47:58,324 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:47:58,324 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 12:47:58,324 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 12:47:58,325 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 12:47:58,325 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:47:58,325 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:47:58,325 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 12:47:58,325 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:47:58,325 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 12:47:58,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 12:47:58,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 12:47:58,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:47:58,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:47:58,354 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 12:47:58,354 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 12:47:58,354 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 12:47:58,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 12:47:58,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 12:47:58,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:47:58,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:47:58,356 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 12:47:58,356 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 12:47:58,361 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 13#L16-2true [2018-11-23 12:47:58,361 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~k~0;main_~k~0 := main_#t~post2 - 1;havoc main_#t~post2;main_~i~0 := 2 + main_~i~0; 13#L16-2true [2018-11-23 12:47:58,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:58,365 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2018-11-23 12:47:58,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:58,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:58,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:58,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:58,428 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2018-11-23 12:47:58,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:58,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:58,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:58,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:58,434 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2018-11-23 12:47:58,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:58,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:58,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:58,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:58,500 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:47:58,501 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:47:58,501 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:47:58,501 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:47:58,501 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 12:47:58,501 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,502 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:47:58,502 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:47:58,502 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-23 12:47:58,502 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:47:58,502 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:47:58,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,577 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:47:58,578 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:47:58,582 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:47:58,587 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:47:58,587 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,602 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:47:58,602 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:47:58,624 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:47:58,636 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:47:58,637 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-5}, {ULTIMATE.start_main_~k~0=4}, {ULTIMATE.start_main_~k~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:47:58,653 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:47:58,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:47:58,771 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 12:47:58,772 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:47:58,772 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:47:58,772 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:47:58,772 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:47:58,772 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 12:47:58,772 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:58,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:47:58,772 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:47:58,772 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-23 12:47:58,773 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:47:58,773 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:47:58,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:58,826 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:47:58,829 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 12:47:58,830 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:47:58,831 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:47:58,831 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:47:58,832 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:47:58,832 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:47:58,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:47:58,833 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:47:58,833 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:47:58,836 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 12:47:58,837 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:47:58,837 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:47:58,837 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:47:58,837 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:47:58,837 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:47:58,838 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:47:58,838 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:47:58,838 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:47:58,842 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 12:47:58,842 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:47:58,843 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:47:58,843 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:47:58,844 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:47:58,844 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:47:58,844 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:47:58,845 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:47:58,845 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:47:58,850 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 12:47:58,854 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 12:47:58,855 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 12:47:58,856 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 12:47:58,856 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 12:47:58,856 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 12:47:58,857 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-23 12:47:58,858 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 12:47:58,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:47:58,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:47:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:47:58,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:47:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:47:58,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 12:47:58,931 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2018-11-23 12:47:58,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 34 states and 44 transitions. Complement of second has 5 states. [2018-11-23 12:47:58,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 12:47:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 12:47:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 12:47:58,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-23 12:47:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:58,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 12:47:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:58,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 12:47:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:58,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2018-11-23 12:47:58,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 12:47:58,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 8 states and 10 transitions. [2018-11-23 12:47:58,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-23 12:47:58,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 12:47:58,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-23 12:47:58,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 12:47:58,989 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-23 12:47:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-23 12:47:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-23 12:47:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 12:47:59,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-23 12:47:59,011 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-23 12:47:59,011 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-23 12:47:59,011 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 12:47:59,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-23 12:47:59,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 12:47:59,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:47:59,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:47:59,012 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 12:47:59,012 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 12:47:59,012 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 79#L13 assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 83#L16-2 assume !(main_~i~0 < main_~n~0); 82#L16-3 main_~j~0 := 0; 81#L21-2 [2018-11-23 12:47:59,012 INFO L796 eck$LassoCheckResult]: Loop: 81#L21-2 assume !!(main_~j~0 < (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2));__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 84#L4 assume !(0 == __VERIFIER_assert_~cond); 80#L4-2 main_#t~post3 := main_~k~0;main_~k~0 := main_#t~post3 - 1;havoc main_#t~post3;main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 81#L21-2 [2018-11-23 12:47:59,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash 959500, now seen corresponding path program 1 times [2018-11-23 12:47:59,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:59,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:59,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:59,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:59,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:59,019 INFO L82 PathProgramCache]: Analyzing trace with hash 57822, now seen corresponding path program 1 times [2018-11-23 12:47:59,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:59,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:59,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:59,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:47:59,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1480278541, now seen corresponding path program 1 times [2018-11-23 12:47:59,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:47:59,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:47:59,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:47:59,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:47:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:47:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:47:59,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:47:59,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:47:59,116 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:47:59,116 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:47:59,116 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:47:59,116 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:47:59,116 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 12:47:59,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:59,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:47:59,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:47:59,116 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-23 12:47:59,117 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:47:59,117 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:47:59,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,358 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:47:59,358 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:59,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:47:59,368 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d3b91a-ed10-43ae-b621-320d1c523c6f/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:59,391 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:47:59,392 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:47:59,598 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 12:47:59,600 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:47:59,600 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:47:59,600 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:47:59,600 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:47:59,600 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 12:47:59,600 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:47:59,600 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:47:59,600 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:47:59,601 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-23 12:47:59,601 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:47:59,601 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:47:59,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:47:59,747 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:47:59,747 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 12:47:59,748 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 12:47:59,749 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 12:47:59,749 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 12:47:59,749 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 12:47:59,749 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 12:47:59,749 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 12:47:59,750 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 12:47:59,750 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 12:47:59,753 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 12:47:59,756 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 12:47:59,756 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 12:47:59,756 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 12:47:59,756 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 12:47:59,757 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 12:47:59,757 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-11-23 12:47:59,757 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 12:47:59,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:47:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:47:59,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:47:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:47:59,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:47:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:47:59,804 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 12:47:59,804 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-23 12:47:59,845 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 6 states. [2018-11-23 12:47:59,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 12:47:59,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:47:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-23 12:47:59,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 12:47:59,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:59,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 12:47:59,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:59,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 12:47:59,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 12:47:59,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-11-23 12:47:59,848 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 12:47:59,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-23 12:47:59,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 12:47:59,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 12:47:59,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 12:47:59,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 12:47:59,848 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:47:59,849 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:47:59,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:47:59,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:47:59,852 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-23 12:47:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:47:59,854 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 12:47:59,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 12:47:59,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 12:47:59,855 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 12:47:59,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:47:59,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 12:47:59,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 12:47:59,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 12:47:59,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 12:47:59,856 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:47:59,856 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:47:59,856 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:47:59,856 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 12:47:59,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:47:59,856 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 12:47:59,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 12:47:59,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:47:59 BoogieIcfgContainer [2018-11-23 12:47:59,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 12:47:59,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:47:59,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:47:59,861 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:47:59,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:58" (3/4) ... [2018-11-23 12:47:59,863 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 12:47:59,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:47:59,864 INFO L168 Benchmark]: Toolchain (without parser) took 1964.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 961.9 MB in the beginning and 946.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 164.8 MB. Max. memory is 11.5 GB. [2018-11-23 12:47:59,865 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:47:59,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.81 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:47:59,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.29 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:47:59,866 INFO L168 Benchmark]: Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:47:59,867 INFO L168 Benchmark]: RCFGBuilder took 168.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:47:59,867 INFO L168 Benchmark]: BuchiAutomizer took 1575.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.6 MB in the end (delta: 183.7 MB). Peak memory consumption was 183.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:47:59,867 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 946.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:47:59,870 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.81 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.29 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 168.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1575.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.6 MB in the end (delta: 183.7 MB). Peak memory consumption was 183.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 946.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 21 SDslu, 7 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div230 bol100 ite105 ukn100 eq143 hnf74 smp82 dnf131 smp96 tf107 neg99 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...